Hose/Line HVAC

HOSE FITTING TIGHTENING TORQUES
5/8 in.-18 UNF 15-18 Nm (11-13 ft lb)
3/4 in.-16 UNF 14-28 Nm (10-21 ft lb)
7/8 in.-14 UNF 29-37 Nm (21-27 ft lb)